Which of the following best describes hatching in art?

Hatching in art is best described as the use of non-overlapping parallel lines to create shading and texture in a drawing. This technique involves drawing multiple lines that run in one direction, and by varying the distance between these lines, an artist can create the illusion of depth and shadow. This method is commonly used in sketching and illustrations to convey light and form without the use of color.

The other choices do not accurately define hatching. Overlapping circles suggest a different technique often used in shading, not specific to hatching. Mixed media refers to the use of various materials and techniques, which is a broader concept that doesn’t pertain specifically to line work like hatching. Focus on colors indicates a technique centered around color application, which is distinct from the principles of line drawing that hatching embodies.